Home / 7,759.86-11,639.84-5,288.55

Finding the Fourth Proportional to 7,759.86, 11,639.84 and 5,288.55

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Solution

The fourth proportional to 7,759.86, 11,639.84 and 5,288.55 is: 7,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.86 : 11,639.84 = 5,288.55 : x
  2. Step 2: Convert to fraction form
    7,759.86/11,639.84 = 5,288.55/x
  3. Step 3: Cross multiply
    7,759.86x = 11,639.84 × 5,288.55
  4. Step 4: Simplify right side
    7,759.86x = 61,557,849.39
  5. Step 5: Solve for x
    x = 61,557,849.39/7,759.86
  6. Step 6: Final answer
    x = 7,932.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.